A method of producing an electroconductive substrate including a base material, and an electroconductive pattern disposed on one main surface side of the base material includes: a step of forming a trench including a bottom surface to which a foundation layer is exposed, and a lateral surface which includes a surface of a trench formation layer, according to an imprint method; and a step of forming an electroconductive pattern layer by growing metal plating from the foundation layer which is exposed to the bottom surface of the trench.

A new method capable of forming a circuit by performing metal plating on a desired portion on a substrate through a small number of steps regardless of the kind of the substrate. A method for forming a circuit on a substrate characterized in that when forming a circuit by plating on a substrate, the method includes steps of applying a coating film containing a silicone oligomer and a catalyst metal onto the substrate, and thereafter, performing an activation treatment of the catalyst metal in the coating film to make the catalyst metal exhibit autocatalytic properties, and then, performing electroless plating.

An object of the present invention is to provide a method for easily producing an electroconductive laminate having a three-dimensional shape and having a metal layer disposed thereon (for example, an electroconductive laminate having a three-dimensional shape including a curved surface and a metal layer disposed on the curved surface). Another object of the present invention is to provide a three-dimensional structure with a plated-layer precursor layer, a three-dimensional structure with a patterned plated layer, an electroconductive laminate, a touch sensor, a heat generating member, and a three-dimensional structure.

The method for producing an electroconductive laminate of the present invention has a step of obtaining a three-dimensional structure with a plated-layer precursor layer including a three-dimensional structure and a plated-layer precursor layer disposed on the three-dimensional structure and having a functional group capable of interacting with a plating catalyst or a precursor thereof and a polymerizable group; a step of applying energy to the plated-layer precursor layer to form a patterned plated layer; and a step of subjecting the patterned plated layer to a plating treatment to form a patterned metal layer on the plated layer.

There is provided a copper foil with a carrier particularly suitable for a circuit forming process for removing a carrier after laser drilling and desmear treatment, in detail, a copper foil with a carrier having high heat press resistance (heat resistance) of the carrier, laser drilling performance, corrosion resistance of the carrier against the desmear treatment, corrosion resistance of a release layer against the desmear treatment, and carrier release strength. The copper foil with a carrier comprises a carrier comprising at least one resin selected from polyethylene naphthalate (PEN) resins, polyethersulfone (PES) resins, polyimide resins, and polyphenylene sulfide resins; a silicon layer provided on the carrier, the silicon layer mainly containing silicon; a carbon layer provided on the silicon layer, the carbon layer mainly containing carbon; and an extremely thin copper layer provided on the carbon layer.

The method for producing noble metal nanocomposites involves reducing noble metal ions (Ag, Au and Pt) on graphene oxide (GO) or carbon nanotubes (CNT) by using Artocarpus integer leaves extract as a reducing agent. As synthesized MNPs/GO and MNPs/CNT composites have been characterized using X-ray diffraction (XRD), transmission electron microscope (TEM) imaging, and energy dispersive X-ray spectroscopy (EDX). The TEM images of prepared materials showed that the nanocomposites were 1-30 nm in size with spherical nanoparticles embedded on the surface of GO and CNT. This synthetic route is easy and rapid for preparing a variety of nanocomposites. The method avoids use of toxic chemicals, and the prepared nanocomposites can be used for biosensor, fuel cell, and biomedical applications.

The method for producing noble metal nanocomposites involves reducing noble metal ions (Ag, Au and Pt) on graphene oxide (GO) or carbon nanotubes (CNT) by using Artocarpus integer leaves extract as a reducing agent. As synthesized MNPs/GO and MNPs/CNT composites have been characterized using X-ray diffraction (XRD), transmission electron microscope (TEM) imaging, and energy dispersive X-ray spectroscopy (EDX). The TEM images of prepared materials showed that the nanocomposites were 1-30 nm in size with spherical nanoparticles embedded on the surface of GO and CNT. This synthetic route is easy and rapid for preparing a variety of nanocomposites. The method avoids use of toxic chemicals, and the prepared nanocomposites can be used for biosensor, fuel cell, and biomedical applications.

A coating composition, a composite prepared by using the coating composition, and a method for preparing the composite are provided. The coating composition includes a solvent, an adhesive, and a catalyst precursor including at least one chosen from SnO.sub.2, ZnSnO.sub.3 and ZnTiO.sub.3.

A solution including a precious metal nanoparticle and a polymer polymerized from at least two monomers, (1) a monomer having two or more carboxyl groups or carboxyl acid salt groups and (2) a monomer which has ? electron-available features. The solution is useful for a catalyst of a process for electroless plating a metal on non-conductive surface.

Embodiments of the present disclosure are directed to a polymer article. The polymer article includes a polymer matrix and a metal compound dispersed in the polymer matrix. The metal compound is a compound represented by formula (I): A.sub.xCu.sub.y(PO.sub.4).sub.2 (I). In formula (I), A represents at least one element selected from Group IIA of the periodic table of elements, x/y=0.1 to 20, x+y=3.

This invention relates to a magnetic composite powder, a method of preparing the same and an electromagnetic noise suppressing film comprising the same. The magnetic composite powder and the electromagnetic noise suppressing film can effectively suppress unwanted electromagnetic waves emitted by various parts of an advanced digital device having high performance characteristics in terms of speed, frequency and functionality.